Residuum
n. 残留物, 剩余物, 残数, 余数, 留数, 社会渣滓\\n[化] 渣油
✅ 同义词
🗣️ 情景例句
Learning to express oneself well in an important part of education.
学会把意思表达清楚是受教育的一个重要方面。
There are forests here,and lumbering is important.
在这里有森林，木材业很重要。
For once, Harry had to admit defeat.
哈里只好认输。